mokinnon



(No Model.) 2 Sheets-Sheet 1. J. D. MQKINNON. COMBINED HARROW, ROLLER, &0.

N0. 239,118] Patented Nov. 27,1883.

- INVBNTOR 77ZW a WITNESSES: flaw 73M ATTORNEYS.

2 Sheets-'-Sheet 2.

(No Model.)

- J. D. MGKINNON.

COMBINED HARROW, ROLLER, 8x0 N0.289,118. Patented Nov. 27, 1883.

WI'IilFSES: (Q BY ATTORNEYS,

n4 PETERS. mwxmmn m, \Valhingwn. o c.

nection with the drawings, and then pointed of Portland, in the county of Multn'omah and end of the roller shell or drum 0 is made to fit, for connecting the drum when it is to be used JAMES DANIEL MCKINNON,

OF PORTLAND, OREGON.

SPECIFICATION forming part of Letters Patent No. 289,118, dated November 2'7, 1883.

Application filed May 21, 1883. (No model.)

To aZZ whom it may concern:

Be it known that 1, James D; MOKINNON,

State of Oregon, have invented a new and 1111- proved Combined Harrow, Roller, Seeder, and Cultivator, of which the following is a full, clear, and'exact, description.

The invention will first be described'iii conout in the claims.

Reference is to be had to the accompanying drawings, forniing part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure]. is a side elevation of my improved machine. Fig. 2 is a front elevation of one side with some of the parts in section. Fig. 3 is a detail sectional view of the rim of one of the wheels and a portion of the rim of the drum, and Fig. 4 is a detail sectional view of the harrow-cylinder. I

I makewheel-rims c for the truck-wheels, having a groove, b, in one side, in which the for rolling the ground, the connection being such that the said drum 0 can be detached from thewheels a when it is not required for usc the wheels then forming simply a truck. The outer side of each wheel-rim a has a rim, 6, of smaller diameter than the rim a, and provided with spurs f, for driving an. endless chain, for rotating the harrowcylinder h, the said rims a c having spokes z, for being connected to an axle, j, by a hub thereon, which axle is mounted in boxes is of the frame Z. The boxes is are bolted to the frame 2, so that they can be taken off readily to allow the wheels, or one of them, to be shifted along the axle a little, for allowing the drum or shell 0 to be connected to the wheels for use in rolling the ground, or disconnected when the wheels are to be used without the drum to work the barrow and seeder only. The boxes 70 have a hub, m, extending each side of them, to support the radius-bars a, in which the harrowdrum h is mounted, said bars a being divided or forked, to connect with said hubs in each side of the boxes k, and being connected thereto by yoke-straps o, fitted around the hubs and bolted to the bars.

By connecting the bars n to the hubs m instead of the axle j, a considerable amount of friction is avoided that would be caused by the pressure of the bars on the journals of the axle j.

The barrow-drum hhas teeth 11, which, as

represented in the drawings, consist of metal bars having points g, which are bent upward or backward with reference to the direction in which the harrow revolvesythe object of which is that they shall beat the clods downward and cut and pulverize them to better advantage than if they were straight. V The teeth 1) are also set with an angle to form a cutting-edge for more effective operation than if turned flatwise to the direction in which they revolve. Said teeth are screwed into the cylinder h, and have check-nuts s, which screw against the surface of the cylinder h, to bind them fast, and for a means for readily detaching them to change from one form of teeth to another for different kinds of work; For in cylinder and the truck-axle. When oultivatv v ing corn, the roller-shellc will be detached from the wheels.

The harro'w-cylinder It may consist of a wood roller or a hollow meta-l shell, as preferred, but will have caps t for the ends, which connect by screwing onto said ends, as represented in Fig. 4:, the said caps thaving ajournal, a,

by which the cylinder is mounted in the boxes 1: of the radiusbars a. The caps 25 also serve for the chain-pulleys on which the drivingchains run, having spurs f cast on them to connect with the chain. These bars a are suspended by a chain, it, passing over guide-pulleys w to the shaft y, by which said chain is wound up or let out to raise or lower the harrow to regulate it with reference to the depth the teeth are to work and for suspending the barrow above the ground, the said shaft being mounted in suitable bearings, z, on the frame, and having a crank, affor turning it, and a ratchet and pawl, b, for holding said shaft to set the harrow.

Over the harrow I have arranged a seedhopper, c, in which a rotary seed-dropper of any approved kind is to be arranged, which I propose to gear by means of a chain-pulley, (1, having spurs f, like those of the rim 6, and arranged with'such relation to chain g that said pulley (1 will be turned by said chain at the same time that the harrow is turned by it.

I propose to make the frame I of angle iron, for the best material to use fora light, strong, and cheap frame, and will attach seat-supporting standards f over the axle, to the top of which I connect a bar, g, extending from side to side and supporting the seat h in the center of the machine,where the regulating-shaft 1 is located, or in suitable proximity to crank a of said shaft.

The bar g is fitted to the supporting-standards f by turned ends i, projecting through the holes of the standards and fastened by I as new and desire to secure by Letters l?ate11t-v 1. The combination, with the drum 0, of the wheel-rims a a, grooved at b, and rigidly connected by spokes with a hub on the axle, as described, whereby when the hubs are in place on the axle the drum is held securely between the rims, but when the hubs are moved to the ends of axle the drum may be removed, as set forth.

2. In, combination with the roller-frame, the boxes is, havinga hub on each side, the forked bars a, the yoke-straps o, and the revolving toothed drum, as shown and described.

JAMES DANIEL MOKINNON.

\Vitnesses:

FRANCIS CLARNO, G120. NV. YocUM. 

